. >> the plane 3,000 feet up can go 30,000 feet. >> idea toshowtechnologyexistsfor the alternative fuel autos thanks for joining us at 4:00 i'm. >> abc 7 news at 4:00 begins right now. >> thank you. leaders in contra costa county feel the heat over a new proposal to close more fire staying autos a hacker attack that sent wall street into a three-minute free fall. >> i'm sandhya patel. natural air conditioning back with us. how long cooling trend will continue. >> good evening, i'm cheryl jennings. >> the daempk russ fire season arrives as one county cuts back on fire protection. >> fires need quick attention but the fire department could be in trouble. four stations closed in january two, more in jeopardy because of deep cuts. laura? >> well, firefighters just pulled out spending the afternoon knocking down this they say will only get worse if there are more cuts. barely three months after closing four stations the fire department is on its way to closing two more. >> there will be station closures and less people on the streets and there will be fatality autos contra costa supervisors announ